U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!

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Examiner: Hirsch, Paul J.


Primary examiner statistics: 2090 patents; average approval time: 624 days
Assistant examiner statistics: 307 patents; average approval time: 678 days

Patents as Primary Examiner (view all)

Patent No. Patent Title:
RE39311 Hermetically sealed cosmetic compact case
6981517 Gas supply system, valve assembly and method of forming reactant ...
6913245 In-line shut-off valve and method of assembling same
6910504 Surge prevention device
6907903 Drive shaft for ceramic control valve of faucet
6904960 Heat dissipation apparatus
6901942 Butterfly valve with injection-molded shaft
6899121 Switching valve seal
6896240 Diaphragmed air valve system
6892747 Temperature actuated valve
6886804 Socket for pipe coupling
6886801 Valve assembly
6886806 Throttle-valve actuating unit
6886586 Symmetrical valve configuration
6883599 Heat exchanger with corrugated plate
6883774 Microelectromechanical high pressure gas microvalve
6883773 Pinch valve
6880805 Trim installation hardware
6880797 Safety tap for hot water dispenser
6880808 Gamma-stable high pressure stopcock
6874525 Linear solenoid valve control device
6871698 Heat dissipation device with interlocking fins
6871836 Electromagnetic valve for variable discharge fuel supply apparatu...
6869061 Valves, and seismic sources incorporating the valves
6866241 Portable flow control valve
6866244 Bushing-less control valve
6863260 Piston actuator incorporating partitioned pressure chambers
6863120 Laminated heat exchanger
6860464 Electromechanical/pneumatic rocket engine valve actuator
6860321 Heat-dissipating device
6857617 Roller pincher for setting the regulation cross-section of a flex...
6848668 Silent-operating device for feeding water into a tank, in particu...
6845964 Actuator for automotive air duct damper
6845958 Wireline valve actuator
6845966 Gas valve with linear regulation for gas burners
6843466 Rotational speed adjustment mechanism of a pneumatic tool
6843465 Memory wire actuated control valve
6837474 Electrically operated remote trip mechanism and method
6837226 System for diagnosing EGR valve, actuator and sensor related fail...
6837477 Proportional pressure-regulator valve

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
4254606 Mechanism for swiveling a machine sub-assembly
4223515 Tree shaker mounting
4214429 Brush rake
4214426 Noise damping arrangement in rotating cutting devices
4212144 Machine for cutting and conditioning forage
4211058 Lawn mower including a carburetor enclosure
4209964 Two-speed forward and reverse self-propel system for walk-behind ...
4206580 Mower device
4206585 Vine pruning means and method
4206582 Header lift arrangement for windrowers
4206587 Discharge means
4205509 Power transmission device for power-operated lawn mowing machine
4205513 Ground-rolling forwardly-directed rotary baler
4204387 Gear drive for multiple row harvester
4204389 Machine for harvesting in-line crops
4204383 Automatic height control for gathering reel for agricultural comb...
4204357 Flying disc
4204388 Air cushion mowers
4203242 Sign standard
4203247 Toy vehicle launcher and toy vehicle for use therewith
4202155 Aquatic weed cutter, de-rooter and harvester
4202159 Conveyor for a combine harvester
4202158 Crop harvesting apparatus
4201012 Remote control vehicle
4201227 Corn shelling device
4199840 Scraper blade structure for meat cleaning machine
4199924 Tensioning and safety apparatus for conveyor chain of row-crop ha...
4199922 Mowing machine
4199923 Apparatus for cutting and collecting grass clippings
4198925 Grading small live fish underwater
4197672 Model racing car
4196566 Aquatic weed cutter
4195439 Toy flying object
4194317 Remotely controlled aircraft
4194345 Lawnmower
4194347 Method and apparatus for shaking trees grown in rows
4193250 Height control for multi-row crop harvester
4191006 Floating cutterbar knife drive
4191106 Printing plate clamping assembly
4189901 Flail shredder
 
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